The high-speed operational amplifier is a multi-stage amplifier with high amplification factor. Under deep negative feedback conditions, it is easy to generate self-oscillation. In order to make the amplifier work stably, a certain phase compensation network needs to be added to eliminate the self-oscillation. This paper tests the self-oscillation of a high-speed operational amplifier AD713, and eliminates the self-oscillation through the phase lag compensation network, so that the operation is stable.
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